Ioannis Velentzas NEUROLOGIST Director, Department of Clinical Neurophysiology

• German Neurologic Society
• Greek Neurologic Society
• German Neurophysiologic Society
• Greek Neurophysiologic Society
• Movement Disorder Society

• Since June 2001 Director of the Department of Clinical Neurophysiology, Hygeia Hospital, Athens
• 1999-2001 Medical Office as Neurologist and Psychiatrist in Augsburg, Germany
• 1995-1999 Registrar serving also as vice director in the Neurology Clinic of the Evangelic and St. John’s Knight’s Hospital in Dierdorf Selters, Rheinland Pfalz, Germany (General and medical educational Hospital)

Education Experience:

• 1993-1994 Education in neurology in the medical office of Dr med Neulinger Wittman, Landshut
• 1991-1993 Education in neurology in the Neurology Clinic Bad Neustadt an der Saale, Medical Group Rhoen Klinikum, Bavaria, Germany
• 1990-1991 Education in Neurology in the Neurology Clinic of the Neurologic and Psychiatric Hospital of the District Unterfranken Lohr am Main, Bavaria Germany
• 1987-1991 Education in psychiatry in the Neurologic and Psychiatric Hospital of the District Unterfranken Lohr am Main, Bavaria, Germany
• 1986-1987 Education in psychiatry in the Psychiatry Clinic of the Medical School of the Technical University in Munich
• 1983-1986 Education in psychotherapy Bavarian Society for Psychotherapy

• Movement Disorders, deep brain stimulation for movement disorders, pain and psychiatric diseases, other neuromodulation methods for neurologic and psychiatric diseases, stroke, diseases of the peripheral nervous system, autoimmune diseases of the nervous system, epilepsy

Research Interest:

• Deep brain stimulation, extension of its indications in the whole spectrum of movement disorders, epilepsy and psychiatric and other neurodegenerative disorders. Neuromodulation with repetitive transcranial neuronavigated magnetic stimulation, extension of its indications.
• Member of the PPN working group since 2013, international comity investigating the effect of deep brain stimulation at the pedunculopontine nucleus in the brainstem, inpurpose to imrove gait in extrapyramidal diseases
• Main investigator in the TRUST study (transdermal Rotigotine User surveillance study), international multicentric study for the treatment of Parkinson’s disease 2010-2013
• Main investigator in the OBSERVE PD study, international, multicentric study fot rhe treatment of Parkinson’s disease 2015
• Main investigator in the SUCCESS study, multicentric greek study for the treatment of multiple sclerosis patients with glatirameracetate

• Postoperative course in patients undergone deep brain stimulation, 21st Congress of the Greek neurologists”, Athens 2007
• Differential diagnosis of psychogenic tremor”, Seminar for movement disorders of the Greek Neurologists Society , (org. General State Hospital Gennimata), Athens, May 2007
• Use of electronic Microdrive in deep brain stimulation operations”,
• Presentation in the Congress of the Greek Neurosurgery Society, Rhodos May 2007
• Seminar for multiple sclerosis of the Greek Neurologists Society, Volos, Mars 2007: Use of evoked potentials in diagnosis of multiple sclerosis
• Seminar for movement disorders of the Greek Neurologists Society (Org. General State Hospital Gennimata): Differential diagnosis of tremor, Athens 2008
• 1st Panhellenic Congress of clinical Neuropharmacology and Neurotoxicology (Org Aristiteles University of Thessaloniki A’ Clinic for Neurology AHEPA) Ouranoupolis Chalkidiki June 2008: The Pharmacologic therapy of neurologic diseases
• 2nd Seminar of the Greek Electroencephalography and Clinical Neurophysiology Society September2008: Magnetic evokied potentials in the diagnosis of amyotrophic lateral sclerosis
• 1st Panhellenic Neurophysiology Congress (Greek Neurologists Society, Greek Electroencephalography and Clinical Neurophysiology Society) Thessaloniki December 2008: Use of neurophysiological investigation in DBS operations with presentation of cases
• Seminar for Parkinson’s disease (Greek Neurologists Society, Org: Neurology Clinic General State Hospital Gennimata):Pharmacotherapy at the beginning of Parkinson’s disease, Athens, Mars 2010
• Seminar for movement disorders (Greek Neurologists Society, org: Neurology Clinic, General State Hospital Gennimata): The surgical treatment of dystonia, Athens Mars 2011
• Seminar of Nuclear Medicine, Hygeia Mitera January 2012: Nuclear Medicine in neurodegenerative disorders – presentation of cases
• UCB seminar for Lacosamide treatment in focal Epilepsies, Brussels November 2013: Successful oral Lacosamide treatment in a young patient with posttraumatic epileptic status
• Recent Publications & Articles:
• The first application in Greece of the Alpha Omega recording and electronic microdrive system in patient undergoing deep brain stimulation operation (Ι. Velentzas, H. Strogylos, H. Seferis, P.Nomikos, M. Torens) 21st Greek Neurosurgery Congress, Rhodos 2007
• The first application in Greece of double DBS targeting in a patient with parkinsonian tremor. (Ι. Velentzas, H. Strogylos, H. Seferis, P.Nomikos, M. Torens) 21st Grek Neurosurgery Congress, Rhodos 2007
• Difficulties in the adjustment of patients with Parkinson’s disease after neurostimula-tor implantation. (Ι. Velentzas, H. Strogylos, H. Seferis, P.Nomikos, M. Torens) 22nd Congress of the Greek Neurologists, Rethymnon June 2008
• Postoperative course of five greek dystonic patients after implantation of a neu-rostimulator(Ι. Velentzas, H. Strogylos, H. Seferis, P.Nomikos, M. Torens) 22nd Con-gress of the Greek Neurologists, Rethymnon June 2008
• Idiopathic tremor in a form of a multidimensional neurodegenerative disease Velentzas, H. Strogylos, H. Seferis, P.omikos, M. Torens) 22nd Congress of the Greek Neurologists, Thessaloniki May 2009
• Praesurgical neuropsychologic examination helps at the diagnosis of a frontal epilepsy in a case of suggested temporal one (I. Velentzas, P. Afentouli, M. Papageorgiou, C. Stergiou ) Greek Epilepsy Congress Hania, November 2009
• Deep brain stimulation in the pedunculopontine nucleus improves not only gait but also executive functions in two female patients with progressive supranuclear palsy  (I.Velentzas, H. Seferis, P. Afentouli, G. Tagaris, M. Torens) World congress of the Movement Disorder Society, Toronto, June 2011
• Succesful per os therapy with Lacosamide after post traumatic focal epileptic status in a young patient I. Velntzas, M. Souyoultzoglou, P. Afentouli) Greek Epilepsy Congress, Athens April 2012
• Two years observation after Pedunculopontine nucleus deep brain stimulation surgery of two female patients with progressive supranuclear palsy (I.Velentzas, H. Seferis, P. Afentouli, M. Torens) World congress of the Movement Disorder Society, Dublin June 2012
• Spontaneus presenilin mutation at P.Gly266PSEN 1 causes at one 43-year old patient beside dementia extrapyramidal motor symptoms (I.Velentzas, G. Nasioulas, P. Afentouli, M. Torens) World congress of the Movement Disorder Society, Sidney June 2013 the Movement Disorder Society, Dublin June 2013
• Deep Brain stimulation at the subthalamic nucleus did not cause cognitive impairment in elderly patients with idiopathic Parkinson’s disease six months after the operation (I.Velentzas, P.Afentouli, H.Seferis, H.Strogylos) World Congress of the Movement Disorder Society San Diego June 2015